Yana Klochkova
Yana Oleksandrivna Klochkova (Ukrainian: Яна Олександрівна Клочкова; born 7 August 1982) is a Ukrainian swimmer, who has won five Olympic medals in her career, with four of them being gold. She is Merited Master of Sports (1998), Hero of Ukraine (2004) and the most awarded Olympian from Ukraine.Yana Klochkova set 50 Ukrainian records in 25- and 50-meter swimming pools at distances of 100, 200, 400 meters with integrated swimming; 200, 400 and 800 meters freestyle; 100 and 200 meters on the back; 200 meters butterfly and relay swimming. At the Olympic Games in Sydney, she set a world record in a 400-meter medley swimming and a European record in a 200-meter medley swimming.
Source: Wikipedia